In 1942, he also became the 2nd editor for the military "Panzer-Propagandazug PK 697" (English: Tank Propaganda Company 697) led by Kurt Joachim Fischer.
After his release from prison Becher was displaced from his home of Bohemia to Bavaria where he became active in a movement of exiled Bohemian Germans.
Becher initiated the "Komitee zum Schutz der Bürger gegen Diffamierung durch die Linkspresse" a group committed to protect citizens against defamation by left-wing press in 1959.
In 1983, he was awarded the European Charlemagne Prize of the Sudeten German Association for outstanding services to self-determination and international understanding.
Becher was initially a member of the national "Kameradschaftsbund, Bund für gesamtgesellschaftliche Bildung" (English: Federation for societal education) which followed the teachings of Othmar Spann.
In 1959 he tried, with the National Democratic Union (NDU), to establish a collective conservative movement but only the BHE, the Witikobund and some smaller organizations participated.
In the state elections of 1950 Becher with the League of Expellees and Deprived of Rights (German: Liste Deutscher Gemeinschaftsblock der Heimatvertriebenen und Entrechteten), a coalition of DG (6 seats) and BHE (20 seats) in the Bavarian state parliament and elected first deputy chairman of the DG coalition.